What did I eat?

[JaBlue]

My chinese friend took me to eat Pho, pronounced "fuh" for the first time today. I had a gargantuan beef soup. It had noodles and beef balls (not testicles) and chives, beef slices, and some other stuff in it. I added a lot of the red hot sauce and it was good.

Something was not good, though. There was a clear-looking wierd textured thing in it. It was translucent and stringy, and it was a little hard and chewy. It kinda looked like squid tentacle but I am pretty sure that's not what it was. Chinese friend says it may have been cow intestine or pig intenstine but he wasn't sure and it might be something else.

What the hell did I eat????